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Why do I keep getting a message saying data is invalid or missing with a symbol next to the credit card number?

April 26, 2017credit card Data invalid message MISSING symbol

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Why do I keep getting a message saying data is invalid or missing with a symbol next to the credit card number?

1 Answer

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Make sure you uncheck the option “Are you swiping the card.” You only use this option if you have a keyboard swiper or USB swipe card reader.